May weather forecastRumford, ME
May
Weather in May
May brings the warmth residents of Rumford have been longing for. High temperatures begin to rise, and snowfalls become increasingly rare. Residents welcome the summer with open arms as it brings along longer daylight hours. Blossoming summertime filler plants brighten the city with fiery red, bright yellow, and soft pink hues. The month, however, receives the lightest snowfall of the year, reducing to a marginal 0.31 inche.Temperature
May indicates a noticeable escalation in the average high-temperature, moving up from a frosty 47.7°F (8.7°C) in April to a comfortable 62.6°F (17°C). Rumford's average low-temperature is measured at a cold 41.9°F (5.5°C) during May.Humidity
The months with the lowest humidity are May and November, with an average relative humidity of 76%.Rainfall
In Rumford, during May, the rain falls for 15.4 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Rumford, Maine, during the entire year, the rain falls for 146.3 days and collects up to 28.31" (719mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Rumford aggregates 0.31" (8mm) of snow. Throughout the year, there are 69.3 snowfall days, and 48.15" (1223mm) of snow is accumulated.Daylight
In Rumford, the average length of the day in May is 14h and 50min.On the first day of the month, sunrise is at 5:31 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:00 am and sunset at 8:19 pm EDT.
Sunshine
In Rumford, the average sunshine in May is 7.7h.UV index
In Rumford, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 4 in May transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Rumford, ME
- Average high temperature in May: 62.6°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in May: 41.9°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in May
Rumford, ME
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Rumford, ME
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Rumford, ME
- Average humidity in May: 76%
The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).
Average rainfall in May
Rumford, ME
- Average rainfall in May: 2.17"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in May
Rumford, ME
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in May
Rumford, ME
- Average snowfall in May: 0.31"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Rumford, ME
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Rumford, ME
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 7h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in May
Rumford, ME
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).
Average UV index in May
Rumford, ME
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in May
Rumford, ME
- Average cloud cover in May: 52
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in May
Rumford, ME
- Average visibility in May: 5mi
The months with the highest visibility are May, June, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, July, August and September (4mi).





